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Add AVX2 implementation of CRC16-IBM.

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This commit is contained in:
Natalia Portillo
2025-08-21 00:58:51 +01:00
parent b8a97a8a05
commit 83fb4955f2
5 changed files with 261 additions and 3 deletions
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97
tests/crc16.cpp
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@@ -8,6 +8,8 @@
#include "../library.h"
#include "../crc16.h"
#include "../simd.h"
#include "/home/claunia/Development/Aaru/Aaru.Checksums.Native/simd.h"
#include "gtest/gtest.h"
#define EXPECTED_CRC16 0x2d6d
@@ -137,3 +139,98 @@ TEST_F(crc16Fixture, crc16_auto_2352bytes)
EXPECT_EQ(crc, EXPECTED_CRC16_2352BYTES);
}
#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
defined(__i386__) || defined(__THW_INTEL) || defined(_M_IX86)
TEST_F(crc16Fixture, crc16_avx2)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer, 1048576);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16);
}
TEST_F(crc16Fixture, crc16_avx2_misaligned)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer_misaligned + 1, 1048576);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16);
}
TEST_F(crc16Fixture, crc16_avx2_15bytes)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer, 15);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_15BYTES);
}
TEST_F(crc16Fixture, crc16_avx2_31bytes)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer, 31);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_31BYTES);
}
TEST_F(crc16Fixture, crc16_avx2_63bytes)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer, 63);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_63BYTES);
}
TEST_F(crc16Fixture, crc16_avx2_2352bytes)
{
if(!have_avx2()) return;
crc16_ctx *ctx = crc16_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_update_avx2(ctx, buffer, 2352);
crc16_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_2352BYTES);
}
#endif